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  1. Mystery Diff Fluid. Amazeballs. RDU over heating with slicks... any solutions???

    Focus RS Racing
    So, I broke the front axle on my GTR and my MPSS are toast on the RS. I bought some Ferrari Challenge Pirelli slicks for the RS tomorrow, because I have issues... I am obviously worried I am going to cook the rear differential faster than normal. I believe I have heard of some fluid options...
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